Features: · Available in 1.8V, 2.5V, 2.85V, 3.3V, 3.45V, 5V and Adjustable Versions
· Current Limiting and Thermal Protection
· Output Current 1.5A
· Line Regulation 0.015% (typical)
· Load Regulation 0.1% (typical)Application· SCSI-2 Active Terminator
· High Efficiency Linear Regulators
· Battery Charger
· Post Regulation for Switching Supplies
· Constant Current Regulator
· Microprocessor SupplyPinout
Specifications
| Output Current |
1500 mA |
| Output Min |
3.3, 1.25, 5, 2.5 Volt |
| Input Min Voltage |
2.6 Volt |
| Input Max Voltage |
27, 25, 30, 29 Volt |
| Dropout Voltage |
1.3 Volt |
| Adjustable Output |
No |
| Quiescent Current |
2 mA |
| On/Off Pin |
No |
| Error Flag |
No |
| RegType |
LDO |
| Temperature Min |
-40 deg C |
| Temperature Max |
125 deg C |
| Output Max |
3.3, 27.5, 5, 2.5 Volt |
| Output Voltage |
3.3, 5, 2.5 Volt |
| AEC Q-100 Automotive Grade |
0 |
| View Using Catalog |
If Military/Aerospace specified devices are required,please contact the National Semiconductor Sales Office/Distributors for availability and specifications.
Maximum Input-to-Output Voltage Differential
LM1086-ADJ ..............................................................29V
LM1086-1.8 ...............................................................27V
LM1086-2.5 ...............................................................27V
LM1086-2.85 .............................................................27V
LM1086-3.3 ...............................................................27V
LM1086-3.45 .............................................................27V
LM1086-5.0 ...............................................................25V
Power Dissipation (Note 2) ..................Internally Limited
Junction Temperature (TJ)(Note 3)........................ 150°C
Storage Temperature Range................... -65°C to 150°C
Lead Temperature................................. 260°C, to 10 sec
ESD Tolerance (Note 4) ..........................................2000VDescriptionThe LM1086 is a low dropout three terminal regulators with 1.5A output current capability.
The output voltage is adjustable with the use of a resistor divider.
The LM1086 is a series of low dropout positive voltage regulators with a maximum dropout of 1.5V at 1.5A of load current. It has the same pin-out as National Semiconductor's industry standard LM317.
The LM1086 is available in an adjustable version, which can set the output voltage with only two external resistors. It is also available in six fixed voltages: 1.8V, 2.5V, 2.85V, 3.3V, 3.45V and 5.0V. The fixed versions integrate the adjust resistors.
The LM1086 circuit includes a zener trimmed bandgap reference, current limiting and thermal shutdown.
The LM1086 series is available in TO-220, TO-263, and LLP packages. Refer to the LM1084 for the 5A version, and the LM1085 for the 3A version.
Reliability Metrics
| Part Number |
Process |
EFR Reject |
EFR Sample Size |
PPM |
LTA Rejects |
LTA Device Hours |
FITS |
MTTF (Hours) |
| LM1086-ADJ MDC |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CS-2.5 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CS-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CS-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CS-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CS-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CSX-2.5 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CSX-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CSX-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CSX-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CSX-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CT-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CT-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CT-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086CT-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILD-1.8 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILD-2.5 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILD-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILD-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILD-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILD-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILDX-2.5 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILDX-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILDX-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILDX-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ILDX-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IS-1.8 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IS-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IS-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IS-3.45 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IS-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IS-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ISX-1.8 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ISX-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ISX-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ISX-3.45 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ISX-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086ISX-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IT-1.8 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IT-2.85 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IT-3.3 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IT-5.0 |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
| LM1086IT-ADJ |
LB300 |
0 |
32249 |
0 |
0 |
3406500 |
2 |
966603676 |
Note: The Early Failure Rates (EFR) were calculated as point estimate PPM based on rejects and sample size for EFR. The Long Term Failure Rates were calculated at 60% confidence using the Arrhenius equation at 0.7eV activation energy and derating the assumed stress temperature of 150°C to an application temperature of 55°C.For more information on Reliability Metrics, please click here.
Design Tools
| Title |
Size in Kbytes |
Date |
|
|
|
| LM108X Qualification Package |
1455 Kbytes |
24-Jun-1999 |
View Online |
Download |
|
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
More Application Notes
| Title |
Size in Kbytes |
Date |
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| AN-79: Application Note 79 IC Preamplifier Challenges Choppers on Drift |
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| AN-29: Application Note 29 IC Op Amp Beats FETs on Input Current |
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| AN-241: Application Note 241 Working with High Impedance Op Amps |
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| AN-222: Application Note 222 Super Matched Bipolar Transistor Pair Sets New Standards for Drift and Noise |
399 Kbytes |
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| AN-178: Application Note 178 Applications for an Adjustable IC Power Regulator |
40 Kbytes |
3-Oct-02 |
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| AN-1148: Application Note 1148 Linear Regulators: Theory Of Operation and Compensation |
200 Kbytes |
10-May-04 |
Download |
AN-1148 (Japanese): Application Note 1148 Linear Regulators: Theory Of Operation and Compensation
640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
216 Kbytes |
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AN-1148 (Chinese): Application Note 1148 Linear Regulators: Theory Of Operation and Compensation
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396 Kbytes |
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| AN-30: Application Note 30 Log Converters |
124 Kbytes |
2-Oct-02 |
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| AN-41: Application Note 41 Precision IC Comparator Runs from +5V Logic Supply |
150 Kbytes |
2-Oct-02 |
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| AN-56: 1.2 Volt Reference |
116 Kbytes |
4-Nov-95 |
Download |
AN-56 (Chinese): 1.2 Volt Reference
|
291 Kbytes |
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640){this.height=this.height*640/this.width;this.width=640;}' border="0" alt=" Connection Diagram"> |
If you have trouble printing or viewing PDF file(s), see Printing Problems.
|
LM1086 Data Sheet
